Management and control strategy study for a new hybrid wind turbine system

Abstract

Electrical power generation from wind energy has been recognized as one of major realistic energy sources in CO 2 emission reduction worldwide. However, matching power generation with the load demand remains a great challenge, due to the nature of wind energy intermittency. The paper addresses this issue by developing a new system with the structure of a hybrid connection of the wind turbine and compressed air energy storage. A scroll air motor is adopted to serve as an "air-electricity transformer" to compensate the power output during the period of low wind speed. The paper reports our study in developing a suitable management and control strategy for this hybrid system. The mathematical model for the whole hybrid system is derived in the paper. To achieve steady power output, a multi-mode process control strategy is proposed combined with fuzzy logical pitch control and PI air pressure control. The simulation study has demonstrated that the proposed new hybrid wind turbine system is feasible and has potential for industrial applications. ). act pass total J J J 2 9 9 J 9 J J 9 J x J J J J J J

Modeling and Experimental Study of a Wind Turbine System in Hybrid Connection With Compressed Air Energy Storage

“…Various Energy Storage (ES) technologies can provide the service of compensators to work with different types of wind power generation systems, for example, hydroelectric pumped storage, Compressed Air Energy Storage (CAES), flow batteries and flywheels [6,7]. Among the available ES technologies, CAES can be considered as one of the relatively mature and affordable options [6,8,10].…”